source:other news
release time:2023-03-17
Hits:0
Popular:
Corporation: Ni (OH) 2 + OH- → (←) NIOOH + H2O + E-φ (standard electrode potential) = + 0.49V
Negative poles: M + H2O + E- → (←) MH + OH-φ (standard electrode potential) = -0.829V
Total response: ni (oh) 2 + m → (←) niooh + mh
It can be seen from the above response equation that the electrochemical reactions occurred during the charging and discharge process are all solid -phase transformation mechanisms. There is no intermediate soluble metal ion in the process, and there is no consumption and production of electrolytes, so The internal resistance of nickel -metal hydride batteries is not much different.
Nickel -hydride battery is over -charged and reacted
1. overcharge
Corporation: 4OH- → 2H2O +O2 +4E
Negative poles: 2H2O+O2+4E → 4OH-
2. Excessive discharge
Corporation: 2H2O +2E → H2 +2OH-
Negative poles: H2+2OH- → 2H2O+2E
In the process of overloading and discharge, due to the catalytic effect of hydrogen storage alloy powder, oxygen and hydrogen generated by the positive electrode can be consumed, so that the nickel -metalized battery has the ability to resist overcharge.
At the end of the charging and overcharge, the O2 precipitated on the positive electrode can be diffused to the negative surface and the hydrogen compound through the diaphragm, which is restored to H2O and OH-into the electrolyte, thereby avoiding or reducing the phenomenon of increased pressure accumulation inside the battery. Otherwise, when the battery is over -charged, the MH electrode will generate a large amount of hydrogen, causing the internal pressure of the battery to rise; and at the time of discharge, the H2 precipitated on the positive pole can be quickly absorbed by MH through the diaphragm. When discharging, O2 will be used on the MH electrode, which will cause MH alloys to be oxidized.
Read recommendations:
solar battery storage system Processor
4 Best Ways to Power Your RV Off-Grid: A Quick Guide
Lithium power battery structure.solar batteries for home
Last article:Comparison analysis of nickel -hydride batteries and lithium batteries.lifepo4 power station
Next article:What are the functions of the battery management system?lifepo4 battery 12v 200ah
related suggestion
lithium ion golf cart batteries wholesale
2023-03-20lithium batteries for solar panels wholesaler
2023-04-07lifepo4 battery 12v wholesaler
2023-04-07dual purpose marine battery Vendor
2023-03-20lithium batteries for solar panels price
2023-03-20lithium batteries for solar panels Processing
2023-04-07lithium golf cart batteries
2023-05-08portable battery generators
2023-05-08solar powered generator
2023-05-08solar generator price
2023-05-08solar power storage
2023-05-08lithium battery 12v 100ah
2023-05-0818650 Battery Pack 11.1V Lithium Ion Battery for Light
2023-02-14Low Temperature Lithium Battery 26650 Cell
2022-10-1818650 21700 26650 10C 15C 20C Lithium Ion Battery Cell
2023-02-14LiFePo4 Battery Pack 12V 350Ah
2022-09-1932700 3.2V Special Battery Cell Rechargeable Explosion Proof
2025-04-11Where is the main application of new energy batteries?
2023-04-03Marine Power Redefined: The Advantages of 36V Lithium Batteries for Trolling Motors
2025-03-17Electric ship high -power battery.48v lithium golf cart battery
2023-03-15Best 36V Lithium Battery for Golf Cart: The Ultimate Upgrade for Performance and Longevity
2025-03-24Which is better for ternary lithium batteries and lithium iron phosphate batteries, and which cycle is long?
2023-04-12What is the fundamental reason for the ignition and explosion of polymer batteries.best batteries for solar power storage
2023-08-26What is the difference between lithium manganese battery and lithium sub battery?
2022-12-22How long is the service life of 26650 lithium-ion battery and precautions for its use
2022-12-02What are the ways to retract the lithium battery?portable power station with solar panel
2023-06-09What are the ways to activate the lithium ion battery?
2022-10-21